"Chris" wrote in message
oups.com...
All good advice and most things I've checked, refer is off has been for
a while and I had shut everything off at the panel no change in the
buzzing so turned on items 1 by 1 still nothing different. Disconnected
the dock power battery charger etc no change. The buzz is the same for
CD's or FM radio and no on the equalizer as the system design is that
from the receiver connects to the equalizer which connects RCA cables
to the amp.Cables aren't broken and forgot maybe to mention but this
system worked great for years while I cruised the Caribbean and
elsewhere just recently lack of use I guess the receiver just quit. It
was cheaper to replace than try and fix but the new receiver wouldn't
accept the old CD player so I replaced that and somewhere along this
process I got buzzing speakers to boot. I think its in the ground did
you read my testing resistance on the copper stripping and anything
wrong there?
"I've connected a ground wire from the stereo power neg busway to a
copper strip which
runs all thought out the boat. I've checked the resistance on the
copper by setting my meter to 20K touch both prongs together and get
0.03 rating. I then placed both prongs on the copper wire and the
resistance reads 0.03 but still the buzz. If I disconnect this #16
ground wire it of course gets louder".


It sounds like a grounding problem or possibly a cable that isn't completely
tightened down. I'm not expert on this, but I had a similar experience with
a home system. Turned out it was an inline component cable not being on
tight. The buzz would certainly get worse if you remove grounding cables,
but I did the same experiment on my system, and that didn't narrow it down.